AZ sporting director Max Huiberts says the club have not received an offer from White Hart Lane, but suggests Tottenham's interest is real and admits the striker's growing profile means a summer exit is inevitable.

But Wolfsburg's sporting director Klaus Allofs' says his side have already entered talks with the Netherlands international. "We've got a few options. We've talked to Janssen. We are not the only club in the market for him," Allofs told German daily kicker.

While Janssen could have offers from clubs across Europe, former Netherlands international Wim Kieft has urged his countryman to move to the Premier League and challenge Harry Kane for a first-team role.

"If Janssen has to choose between Ajax and Tottenham, he must go to London," said Kieft in his column for De Telegraaf."Yes, there is Harry Kane. What could be better to try without any pressure as number 12 or 13 to make the great Kane nervous? Regardless of the adventure and the financial gains, Janssen can only get better by training with better players every day."

Tottenham, who finished the 2015-16 season third after witnessing their title challenge collapse in the final weeks of the campaign, are yet to make any additions to their squad this summer. Pochettino has suggested he is hoping to get his squad settled as early as possible, before the club's preseason campaign begins.